CN204517865U - A kind of shared bus resource adopts the data acquisition unit of network environment transmission - Google Patents

Abstract

A kind of shared bus resource adopts the data acquisition unit of network environment transmission, according to sensor communication agreement, the sensing data collected by RS485 bus is resolved, achieve a RS485 bus carries out sensing data collection to the transducer of different sensors agreement, data acquisition also, after process, adopts network adapter to send data to control data corporation by network environment.Usually, undressed original data volume in protocol resolver is larger, that is there is mass of redundancy data in first sensor data, user can set up preset data processing rule as required, the second sensing data that data processor needs from described first sensor data acquisition user according to described preset data processing rule; Thus, improve the efficiency of transmission of data, effectively save Internet resources.

Description

A kind of shared bus resource adopts the data acquisition unit of network environment transmission

Technical field:

The utility model belongs to data collecting field, particularly relates to the data acquisition unit that a kind of shared bus resource adopts network environment transmission.

Background technology:

Along with the development of information technology and network technology, the collection of data and transmission become and become more and more important.The process obtaining field data comprises: spot sensor equipment obtains sensing data, then sensing data is sent to sensing data manager.In the process of carrying out sensor data acquisition, need to be sent to sensor data processor by unprocessed for all sensing datas, if there are the abnormal conditions such as network interruption, sensing data will be there is lose, such as: when carrying out sensor data acquisition by RS485 bus, traditional mode is after directly RS485 bus being converted to Ethernet interface by serial converter, by Ethernet, sensing data is sent to sensor data processor, if there are the abnormal conditions such as network interruption, sensing data will be there is and lose.

At present, the collection of sensing data generally adopts RS485 bus to transmit, but, a RS485 bus is only supported a kind of transducer of communications protocol, if desired sensor data acquisition is carried out to the transducer of different communications protocol, then need the RS485 bus that deployment many is different.Along with the increasing of transducer of different communications protocol, by RS485 bus resources a large amount of for waste, safeguard that the cost of RS485 bus also rises on year-on-year basis.

On the other hand, at present, the collection of a lot of sensing data generally adopts RS485 bus to carry out transport communication, need to lay RS485 bus separately, improve cost, the utility model provides a kind of shared bus resource to adopt the data acquisition unit of network environment transmission, and data acquisition phase adopts RS485 bus, then data are processed, adopt network environment that the transfer of data after process is gone out afterwards.

Summary of the invention:

The object of the utility model embodiment is to provide a kind of shared bus resource to adopt the data acquisition unit of network environment transmission, need the problem of different sensors agreement being carried out to sensor data acquisition to solve, and solve the problem adopting network environment that the transfer of data after process is gone out.

The utility model embodiment is achieved in that a kind of shared bus resource adopts the data acquisition unit of network environment transmission, and described data acquisition unit is connected with transducer by RS485 bus, and described data acquisition unit comprises:

RS485 interface, for obtaining the sensing data collected by RS485 bus;

Protocol resolver, for described sensing data being resolved to first sensor data according to sensor communication protocol tables, first sensor data and initial data;

Data processor, for the second sensing data needed from described first sensor data acquisition user according to preset data processing rule, data after namely second sensing data processes, data processor also has the function of storage, can store the data after process;

Described RS485 interface is connected with described protocol resolver respectively at described RS485 bus, and described data processor is connected with protocol resolver.

Described data acquisition unit also comprises:

Network adapter, for judging whether set up wireless or wired connection with control data corporation, if not, then record the breakpoint of described second sensing data to be sent, if so, then from the breakpoint of described second sensing data, described control data corporation is sent data to;

Described network adapter is connected with described data processor.

Transmission pin TXD and the reception pin RXD of described RS485 interface chip connect described RS485 bus respectively, the data pin DA1 of described RS485 interface chip meets the data pin DA1 of described protocol analysis chip, the data pin DA2 of described protocol analysis chip meets the data pin DA2 of described data processing chip, and the data pin DA3 of described data processing chip connects the data pin of described network adapter.

The beneficial effects of the utility model are, the utility model provides the data acquisition unit that a kind of shared bus resource adopts network environment transmission, according to sensor communication agreement, the sensing data collected by RS485 bus is resolved, achieve a RS485 bus carries out sensing data collection to the transducer of different sensors agreement, then according to the needs of user analytically after first sensor data in obtain the second required sensing data; In order to avoid described second sensing data causes loss in transmitting procedure, the utility model stores and provides network adapter to the second sensing data and carries out record to the breakpoint not transmitting data last time, after network recovery is normal, more then from described breakpoint, the second sensing data is sent to control data corporation.

Accompanying drawing illustrates:

Fig. 1 is the composition structure chart of the data acquisition unit of a kind of shared bus resource employing network environment transmission that the utility model embodiment provides.

Embodiment:

In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.

In order to technical scheme described in the utility model is described, be described below by specific embodiment.

A kind of shared bus resource that Fig. 1 shows the utility model embodiment to be provided adopts the composition structure of the data acquisition unit of network environment transmission, for convenience of description, illustrate only the part relevant to the utility model embodiment.

Present embodiments provide the data acquisition unit that a kind of shared bus resource adopts network environment transmission, described data acquisition unit is connected with transducer by RS485 bus, and described data acquisition unit comprises:

RS485 interface, for obtaining the sensing data collected by RS485 bus;

Protocol resolver, for described sensing data being resolved to first sensor data according to sensor communication protocol tables, first sensor data and initial data;

Data processor, for the second sensing data needed from described first sensor data acquisition user according to preset data processing rule, data after namely second sensing data processes, data processor also has the function of storage, can store the data after process;

Described RS485 interface is connected with described protocol resolver respectively at described RS485 bus, and described data processor is connected with protocol resolver.

Described data acquisition unit also comprises:

Network adapter, for judging whether set up wireless or wired connection with control data corporation, if not, then record the breakpoint of described second sensing data to be sent, if so, then from the breakpoint of described second sensing data, described control data corporation is sent data to;

Described network adapter is connected with described data processor, and network adapter by network environment connection data administrative center, and sends data to control data corporation by network.

There are in the present embodiment 4 road RS485 bus interface, connect the transducer of 24 pieces of different sensors communications protocol by RS485 bus respectively.In order at any time can compatible new transducer, if change or increase the transducer of different agreement, protocol resolver can carry out upgrading in time and configuring from sensor communication protocol server end download sensor communications protocol table.

Based on the transducer of the different sensors communications protocol in RS485 bus, described sensing data is resolved to first sensor data according to sensor communication protocol tables by protocol resolver.Usually, the data volume of the first sensor data in protocol resolver is larger, there is mass of redundancy data in described first sensor data, user can set up preset data processing rule as required, the second sensing data that data processor needs from described first sensor data acquisition user according to described preset data processing rule; Thus, improve the efficiency of transmission of data, effectively save Internet resources.

In order to ensure the correct and complete transmission of described second sensing data, in advance described second sensing data being stored in a data processor, treating that the second sensing data of certain block transducer has been determined to be sent to delete again.Thus, in the situations such as network communication obstruction and suspension, efficiently avoid the loss of described second sensing data.

Especially, under transducer is in severe collection environment, the non-constant of network; In order to ensure effectively, correctly, with completing transmitting of described second sensing data, network adapter provides the function of the breakpoint of record second sensing data; When there is abnormal network, the breakpoint of network adapter record second sensing data, when next network recovery, then resumes from the breakpoint of described second sensing data goes out.Meanwhile, in the packet of described second sensing data of transmission, add error correcting code, thus ensure that the correctness of described second sensing data.

As the utility model one embodiment, described RS485 interface adopts RS485 interface chip, and described protocol resolver adopts protocol analysis chip, and described data processor adopts data processing chip, and described network adapter adopts RJ45 interface communication;

Transmission pin TXD and the reception pin RXD of described RS485 interface chip connect described RS485 bus respectively, the data pin DA1 of described RS485 interface chip meets the data pin DA1 of described protocol analysis chip, the data pin DA2 of described protocol analysis chip meets the data pin DA2 of described data processing chip, and the data pin DA3 of described data processing chip connects the data of described network adapter.

The reception pin RXD of RS485 interface chip obtains sensing data from RS485 bus and is sent to the data pin DA1 of protocol analysis chip from the data pin DA1 of RS485 interface chip, described sensing data is resolved to first sensor data according to sensor communication protocol tables and described first sensor data is sent to the data pin DA2 of data processing chip from data pin DA2 by protocol analysis chip, the second sensing data that data processing chip needs from described first sensor data acquisition user according to preset data processing rule also stores, network adapter judges whether set up wireless or wired connection with data management system, if not, then record the breakpoint of described second sensing data to be sent, if, then network adapter data by data pin from breakpoint by data forward to control data corporation.

Present embodiments provide the data acquisition unit that a kind of shared bus resource adopts network environment transmission, protocol resolver is resolved the sensing data that RS485 interface collects according to sensor communication agreement, achieve a RS485 bus carries out sensing data collection to the transducer of different sensors agreement, then data processor according to the needs of user analytically after first sensor data acquisition needed for the second sensing data; In order to avoid described second sensing data causes loss in transmitting procedure, the utility model is stored the second sensing data by memory, by network adapter, the breakpoint not transmitting data last time is preserved, after network recovery is normal, the second sensing data is then sent to control data corporation by network by network adapter again from breakpoint place.

Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; make some equivalent to substitute or obvious modification without departing from the concept of the premise utility, all should be considered as belonging to the scope of patent protection that the utility model is determined by submitted to claims.

Claims (2)

1. shared bus resource adopts a data acquisition unit for network environment transmission, it is characterized in that, described data acquisition unit is connected with transducer by RS485 bus, and described data acquisition unit comprises:

RS485 interface, for obtaining the sensing data collected by RS485 bus;

Protocol resolver, for described sensing data being resolved to first sensor data according to sensor communication protocol tables, first sensor data and initial data;

Data processor, for the second sensing data needed from described first sensor data acquisition user according to preset data processing rule, data after namely second sensing data processes, data processor also has the function of storage, can store the data after process;

Described RS485 interface is connected with described protocol resolver respectively at described RS485 bus, and described data processor is connected with protocol resolver.

2. a kind of shared bus resource according to claim 1 adopts the data acquisition unit of network environment transmission, and it is characterized in that, described data acquisition unit also comprises, network adapter, and described network adapter is connected with described data processor.